package Other.DP;

/**
 * @author:gao
 * @date:2020/7/14
 * @time:16:33
 * @version:0.0.1
 * @description:none
 */


//122. 买卖股票的最佳时机 II
public class MaxProfit2 {
}

class Solution777777 {
    public int maxProfit(int[] prices) {
        if(prices==null||prices.length==0) return 0;
        int[][] dp = new int[prices.length][2];
        dp[0][0] = 0;
        dp[0][1] = -prices[0];
        for (int i = 1; i <prices.length ; i++) {
            dp[i][0] = Math.max(dp[i-1][0],dp[i-1][1]+prices[i]);
            dp[i][1] = Math.max(dp[i-1][1],dp[i-1][0]-prices[i]);
        }
        return dp[prices.length-1][0];
    }
}

